Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands	6 Months Ended
Apr. 30, 2011	Apr. 30, 2010
Cash flows from operating activities:
Net loss	$ (141,742)	$ (143,342)
Adjustments to reconcile net loss to net cash used in operating activities:
Amortization of premium (discount) on marketable securities	(12)	575
Change in fair value of embedded redemption feature	(9,160)	(6,640)
Depreciation of equipment, furniture and fixtures, and amortization of leasehold improvements	29,367	13,543
Share-based compensation costs	18,886	16,799
Amortization of intangible assets	56,637	33,618
Provision for inventory excess and obsolescence	6,413	7,100
Provision for warranty	5,646	8,847
Other	3,474	1,037
Changes in assets and liabilities, net of effect of acquisition:
Accounts receivable	(48,351)	(53,255)
Inventories	(30,490)	(38,250)
Prepaid expenses and other	963	4,944
Accounts payable, accruals and other obligations	(26,078)	84,831
Deferred revenue	18,999	(3,043)
Net cash used in operating activities	(115,448)	(73,236)
Cash flows used in investing activities:
Payments for equipment, furniture, fixtures and intellectual property	(29,420)	(18,275)
Restricted cash	(11,853)	(9,046)
Purchase of available for sale securities	(49,894)	(63,591)
Proceeds from maturities of available for sale securities		424,841
Proceeds from sales of available for sale securities		179,380
Acquisition of business		(711,932)
Receipt of contingent consideration related to business acquisition	16,394
Net cash used in investing activities	(74,773)	(198,623)
Cash flows from financing activities:
Proceeds from issuance of 4.0% convertible notes payable, net		369,660
Proceeds from issuance of common stock and warrants	7,525	831
Net cash provided by financing activities	7,525	370,491
Effect of exchange rate changes on cash and cash equivalents	849	(108)
Net increase (decrease) in cash and cash equivalents	(182,696)	98,632
Cash and cash equivalents at beginning of period	688,687	485,705
Cash and cash equivalents at end of period	506,840	584,229
Supplemental disclosure of cash flow information
Cash paid during the period for interest	16,411	2,560
Cash paid during the period for income taxes, net	(231)	1,294
Non-cash investing and financing activities
Purchase of equipment in accounts payable	3,242	649
Debt issuance costs in accrued liabilities		5,021
Fixed assets acquired under capital leases	$ 1,401

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